
Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

As the war ends, Hawkeye has a nervous breakdown; Charles is dismayed when Margaret helps him get a position in Boston; B.J. tries to leave early; Father Mulcahy has a hearing loss; Klinger proposes to Soon Lee.

When Margaret thinks she might be pregnant, the only rabbit available for the test is Radar's pet Fluffy.

After a delay of five weeks, five sacks of mail finally arrive at the 4077th.

Father Mulcahy agrees to offer his running abilities in a race that pits the 4077th against the 8063rd.